Recent Progress in Core@Shell Sulfide Electrode Materials for Advanced Supercapacitor Devices

Abstract

Highly conductive and surface area complex hierarchical 3D core@shell nanostructures made of multi‐metallic multi‐valence sulfides are being specially designed as electrode materials of high performance and high power supercapacitors. In fact, bimetallic and trimetallic sulfides have outstanding redox properties as compared with the corresponding single‐phase sulfide based materials, and much higher electrical conductivity than the analogue oxide materials, being excellent materials for the design of core@shell structures with exceptional charge capacity, power, and energy performance. For this purpose, the core material should exhibit high charge diffusion rates and large specific capacitance, while the shell should improve the surface area by promoting a greater accessibility to the electroactive sites thus maximizing the charge capacity and conductivity. In this context, a rational design of nanostructured materials encompassing advanced 2D materials (such as graphene, MXene, black phosphorus, transition metal hydroxides, etc.), as well as carbon materials such as CNTs and carbon cloth, seems to be a very promising strategy to realize flexible enough electrode materials for the development of wearable devices, self‐charged energy storage devices and microsupercapacitors. In all cases, multi‐metallic sulfide‐based core@shell materials play a key role as electroactive materials for realization of high performance, portable and flexible energy storage devices paving the way to a more advanced and sustainable society.

Facile Fabrication of Polyaniline/Pbs Nanocomposite for High-Performance Supercapacitor Application

“…It can be used in many applications, such as solar cells, catalysts, sensors, and photodetectors. Few studies have recently investigated how combining PbS with other active materials increases PbS’s energy storage performance [ 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 ]. For example, Cheol-Hwan Mun et al synthesized a NiS-PbS composite that exhibits a higher specific capacity of 125.89 mA h g −1 at a current density of 2 A g −1 [ 22 ].…”

Advances in MoS2based Hollow Structural Materials for High‐Performance Metal‐Ion Batteries

“…Besides, the larger specific surface area and pore volume makes sure adequate contact area with electrolyte to provide more active sites for redox reactions and shortens the diffusion path of ion [42–45] . Thus, the 0D hollow structural particles would contribute more ratio of capacitive contribution capacity corresponding to the surface‐control process [46–49] . Furthermore, as its unique structural feature, the theoretical contact area between 0D hollow structure particles during manufacturing electrode is only one spot as shown in Figure 2(a), which minimizes the loss of electrochemical active area to improve rate capability.…”

“…[42][43][44][45] Thus, the 0D hollow structural particles would contribute more ratio of capacitive contribution capacity corresponding to the surface-control process. [46][47][48][49] Furthermore, as its unique structural feature, the theoretical contact area between 0D hollow structure particles during manufacturing electrode is only one spot as shown in Figure 2(a), which minimizes the loss of electrochemical active area to improve rate capability. Thus, the 0D hollow structural MoS 2 particles have got a lot of attention as anode materials for metal-ion batteries, which drive the development of various approaches to construct 0D hollow structural MoS 2 particles including hard templating approach, soft templating approach, self-sacrifice templating approach, and template-free approach.…”

Recent progress in ZnCo2O4 and its composites for energy storage and conversion: a review

“…2D-F). 35 EDLCs can reach fast charging/discharging rates and high cycling stability. However, the energy density of this type of material is relatively low, due to the deficient contact at the electrode/electrolyte interface.…”